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JPG to WebP

Convert photographs to WebP for the web, typically 25 to 35 percent smaller than JPEG.

Convert JPG to WebP

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How to convert JPG to WebP

  1. Add your JPEGs. One or many, in a single batch.
  2. Set the quality. Around 82 gives the best size-to-quality trade for photographs.
  3. Download. Individually or as a zip.

About JPG to WebP

WebP compresses photographs more efficiently than JPEG using techniques borrowed from video encoding, which is why the same picture at the same apparent quality lands 25 to 35 percent smaller. For a page carrying a dozen photographs that is a real difference to load time, and load time is one of the few ranking factors you can actually control directly.

Because JPEG is already lossy, this is a second lossy pass, and it is worth being clear about that. Quality around 82 is the practical sweet spot: visually indistinguishable from the source at normal viewing sizes while capturing most of the size benefit. Pushing much below 75 starts compounding the two compression passes and shows up as smudging in smooth areas, with skies and skin tones the first to go.

The honest thing to say is that converting an existing JPEG is not the ideal path. Encoding to WebP directly from an original, uncompressed source produces a better result than re-encoding a JPEG that already threw detail away. If you still have the originals, convert those instead. If all you have is the JPEGs, converting them is still worthwhile: the saving is real and the quality cost at sensible settings is not visible.

Where not to use the output: anything being emailed, printed by a third party, or uploaded to a form that validates file extensions. Browser support for WebP is universal, but the world outside the browser has not fully caught up. WebP for your website, JPEG for everything you hand to another person.

JPG to WebP FAQ

How much smaller will my photos get?

Typically 25 to 35 percent smaller than the JPEG at the same visual quality. The exact figure depends on the image: busy detailed photographs save less than smooth ones.

Does converting JPG to WebP lose quality?

A little, since JPEG is already lossy and this is a second pass. At quality 82 or above the difference is not visible at normal viewing sizes.

Should I convert from the original instead?

Yes, if you still have it. Encoding to WebP from an uncompressed original beats re-encoding a JPEG that has already discarded detail.

Will WebP work in every browser?

Yes: Chrome, Edge, Firefox, and Safari all support it. The gaps are outside the browser, in older desktop software and some email clients.

Can I convert a whole folder?

Yes. Add the batch and download everything as a single zip.

Are my photos uploaded?

No. Everything runs in this browser tab.

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